Looking at a close-up of the structural properties of these rocks, there is a very sharp edge between most of them. This might suggest that the process of
fracturing (?) was very violent, if not recent (in geological terms); where we're looking at both the outer surface rock (red outlines) showing a more eroded,
smooth surface, and the rock's innards (blue outlines) showing multiple fracture-type effects.

I wouldn't know about the landing distance from this rock, but I assume that the above violent process resulting in the above fragments wasn't due to
Percy's engine blasts, but more due to temperature variation effects on rocks on Mars's surface over time.

John
PS. PaulH51's original image, below, has obviously been highly edited, so I know he won't mind in the interest of science (thanks Paul).

The sharp edges are probably an artefact as a result of wind erosion rather than fracturing. The clue is that they all have a similar orientation

Jezero Delta Sol 54 Mastcam Z with simulated Percy

Looking at the ground …

Another good example sol55 of the ventifacts previously mentioned with the sharp terminator and revealing the predominant wind direction, much like terrestrial examples.

I'm holding out hope we'll eventually come across more of the larger variety surreal ones since you'd think the process with billions of years practically uninterrupted would produce some crazy formations over that timescale, but the most extreme we've seen i recall are relatively small as seen by Curiosity at various points along the trek to Mt Sharp, or the eroded rocks imaged by Spirit at bottom of Husband Hill on the way to Home Plate. Wish i had links to those..

There is an example of a tiny one in eliBonora's image above if you zoom in just to the left of center.

Sol 57 LMastcam-Z panorama:

sol57 animated gif of wide angle navcam left series, 100ms per frame, vs. ca. 14s per frame in reality.



crop of dd on top of delta (was there another one in a similar location earlier?):



short workflow:

use roverpics to filter for navcam selection, download list of urls, use wget -i urlFile to download images

use gimp to load all pngs in one step as layers (filenames with timestamps will lead to correct sorting).

optionally crop

use filters - animation - optimize for gif

use image - mode - indexed - 255 colors, dither

export as gif - as animation

[todo: figure out how to batch process all layers for contrast stretch]

The gmic plugin can apply filters to all layers. With gmic auto balance, 150ms per frame (100 x speed up):



with gmic color balance stretch

There's something happening at the right edge as well... I can't see well enough in the GIF to tell if there are in fact several dust devils, but that's my impression.

Phil

Sol 57 MZL

These wide-field horizon time lapses appear to be a standard change-detection sequence, signified by ncam005**, starting on sol 50 and repeated on 52, 56, and 57. Remarkably, there appears to be at least one dust devil in each sequence! I wrote a little thread about this, with some average-subtraction gifs to make some easier to spot. None of the dust devils are too spectacular on their own, but it's interesting that they're so prolific. Maybe not all that surprising given the abundance of DD tracks seen from orbit, many very large (estimated 50m wide) and very distinct. This place seems to breathe dust devils.

Thanks, very nice. I thought I had seen a dust devil on the delta before. Perhaps it will become possible to determine if there is a time of day when conditions are favorable.

The panorama before history ...

The Latest View of Mars from Perseverance Rover Mission Sol 57

Click the image below to see the 7 minute video made from MastcamZ L images...



denoise / repair / grade / upscale

I am puzzled by the greenish material on the surface of the stone in the middle of that picture.
copper oxyde? this would be a very pure ore

That image is pretty heavily processed so I don't know if you can trust the hues.